Terminal connecter



March 1 1927. 1,619,086

B.v F. oLDMlxoN TERMINAL CONNECTER Filed sein. zo. 1920 I4 Il s m y lll/[Ill] rrok ya Patented Mar. 1, 1927.

UlliED STTES lPATENT lorries;

TERMNAL CONNECTER.

Application filed September 2G, 1920. Serial No. 411,619.

This invention relates to certain improvements in termina-l connecters, and'is particularly designed and peculiarly adapted as a spark plug connecter for internal combustion engines.

rlhe main object of thc invention is the production of such a connecter of simple and comparatively inexpensive construction, which may be easily, quickly and conveniently attached to an electrode of a spark plug, or other terminal, such attachment while having a certain flexibility, being rela. tively permanent as against the ordinary jars and other conditions incident to the ordinary use of an engine, and which con` nectermay,when desired, be easily, quickly and conveniently removed from attachment -to said electrode or terminal.

Other objects and advantages relate to the details of construction of the device as will more fully appear from the following description taken in connection with the accompanying drawings, in which: I

Figure 1 is a sectional view of the device.

Figure 2 is an elevation of the body portion of same.

Figure 3 is an elevation of the movable jaw.

Figures t, 5, 6 and 7 are respectively elevations of the spring, screw plug, encased conductor and stop pin.

The device as shown, consists of a tubular casing or body -1-d having one end flat-- tened and transversely perforated to form an elongated slot 2. Within the tubular portion of the casing 1H is arranged a movable jaw -3-- as shown in the form of a cylinder, having its front end formed with intersecting V-shaped grooves adapted to coact with the stationary j aw -4 formed by the laterally extending flattened end of the tube, or body -1-.

For the purpose of normally tensioning the jaw -3- a spring -5- is arranged within the casing -1- at-the rear of the j aw 3-, the spring having its rear end in contact with a screw plug -6- having a threaded engagement with the threaded interior of the tube 1 to properly position and compress the spring in the original operation of assembling the device.

The wire, or conductor -7- suitably encased in insulating material -8- is inserted within the rear end of the tube or casing -1- and may be secured therein in any suitable manner, as for instance, by

solder or other suitable material -9-, which may have low fusing temperature,

and for this purpose the tube #1- is pro-V material is fitted over the casing -1- and i' the encased conductor -7- to protect the same against short circuiting by Contact with the motor or other adjacent conducting parts.

The movable aw -3- is provided with a transverse opening, lor bore -12- for the reception of a stop pin 13 which may be secured therein in any suitable manner to limit the rearward movement of the movable jaw and also to coopera-te with the walls of the slot 2- to hold the member 3 against turning relatively to the conducting tube -1-- and to afford means whereby the member ,-3- may be moved inwardly against the action of the spring -5- to release the jaws from engagement with the terminal -14t.

The device so constructed is adapted for use in connection with any suitable terminal, such as the terminal lllshown, which may form a portion of a spark plug or other suitable device.

1t will be readily apparent that the attachment of the terminal connecter shown to the terminal -lllinay be easily and quickly effected by the use of one hand, and that disconnection is equally as easily effected, but that the gripped jaws maintain the attachment as against ordinary conditions of use. l

It will be understood that various changes and modifications may be made in the details of the structure without departing from the invention as set forth in the appended claim.

What I claim is:

A terminal connection of the character described comprising a tube of conducting material having one end formed with an elongated slot closed at its outer end to form a jaw and having a restricted inner end portion, the inner end of said conducting tube b-eing threaded internally, a screw vplug' adjustably engaged With the internal threads of the Conducting tube, an insulated electric conductor having an insulated portion secured in the inner end of the eondueting tube and an adjacent bared end portion secured in the conducting tube in electric conneetion with the latter and the screw plug, a movable jaw slidable endWise in the outer end of the conducting tube and lengthwise of said slot toward and from the .first-named jaw and provided with a serrated outer 'end face cooperating` with said lirst-ained jaw for gripping and releasing an electrical terininal between and from said jaws a coinpression spring between the inner end of the sliding jaw and S'Creiv plug for urging said sliding jaw toward the first-named jaw With a. force dependent upon the adjustment of the Soieiv plug, and inean's on the sliding jaw projecting into the restricted inner end portion of the slot of the conducting tube for liolding the second-named jaw against rotation and whereby the Sliding jaw may be Inoved inward-ly and thereby released by hand against the action 'of the spring'.

n Witness whereof have' hereunto Vset Yniv hand this eighth day of Septelib'er I'aENJAMIN F. oLDt/nxoiv. 

